walter



J. F. WALTER, Jr. METALLIC LATHING.

No. 73,765. Patented Jan. 28, 1868.

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-J. F. WALTER, .13., OF NEW YORK, 'N. 'r.

Lmm Patent No. 73,765, dated January 28, 1868. I

' IMPROVED METhLI-IU LATHING.

TO ALL WHOM IT MAY Carcass.

Be it known that I, J. F. WALTER, Jr., of the'city, county, and State-of New York, have invented an Improved Metallic Lathing and I do hereby declare that the following is a full and exact description thereof. reference being had to the accompanying drawings, making-part of thisspeciiication--- Figure 1 being aside view of a portion ofsheet-metal lathing made in= my improved manner.

Figure 2,'a transverse vertical section thereof, as in a planelindicated by the line x :v, fig. 1.

Like letters designate corresponding parts inboth figures.

I take sheet metal, such as common sheet iron, which may be of no great thickness, nor of superior quality, and perforate it-lengthwise, (or so as to extend in a horizontal direetion when applied,) with oblong slots or apertures, A A 2111113 -B, substantially as represented. The metal which comes out of theseapertures is divided lengthwise, in the middle thereof, and turned outward at about right angles to the sheet of. metal, so as'to form lips or burrs, a a, at the edges of the apertures, as shown. The apertures maybe punched, and the burrsturned out, either by means of cutting and punching-dies, or bypassing thesheets between rollers formed for and adapted to the purpose. The means of doing this, however, composcs no'part of my invention. The aperture s' are formed in alternate rows, A A and B B, whichlap by each other, or break joints," as represented in fig.- 1. This arrangement, with the projecting lips or burrs, gives great firmness and rigidity to the lathing, thereby enabling it to resist warping, springing, or bending outof shape; and it is, therefore, an important feature of the invention, giving it great advantage and superiority over simple'peri'oretd plates. It is also cheap of-eonstruction, sincc the burrs a. a are taken from the apertures, thus requiring no additional surface of metal, and

the'lathing is cheaply and quickly prepared; The thinness of the sheet sufficient for the purpose enhances the cheapness. t I j I This lathing may be applied to wooden studs, in place of wooden lathe, as well as to-iron-structnres, and is about as cheap as wooden la thing, while it makes the building, in a great measure, fire-proof. i

The sheets of lathing may be perforated for nails or bolts, when prepared, or nails can be driven through the metal, or into the corners of the apertures. It is preferably put upso as to have the burrs a a come inside and receive the plaster, but it might be put up the other side inward. To prevent rusting, the sheet metal may bc galvanized or painted.

I do not claim sheet-metal lathingprepared in any manner substantially different from that herein set forth; but g I What I claim as my invention, and desire to secureby Letters Patent, 1s

Sheet-metal lathing', formed with oblong apertures A A 3B, the same being punched in the metal, so as to produce the projecting lipsor burrs a a, at the edges thereof, substantially as herein specified. v i I also claim the overlapping or break-joint" arrangement of the alternate" rows of apertures A A and B B, suhstantiall'y. as and for the purpose herein set forth. I

' i J. F.'WALTE R, J3. Witnesses:

Tries. T. P RKER. 

